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How to change the number of digits over 15.

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Hello! Can anyone help me with the number of digits? I need to set it over 15, around 40 or so. I know the vpa command can help but i cannot unerstand it that well. Is there any way to set the number to 40 for all operations in the workplace. Thank you very much

Accepted Answer

Matt Fig
Matt Fig on 27 Nov 2012
Edited: Matt Fig on 27 Nov 2012
digits = 40; % Only works if you have the symbolic toolbox
But this only applies to symbolic variables. You cannot get more than 16 or so digits out of double values by definition.
N = 10/3;
isa(N,'double') % Yes, N is a double.
Ns = vpa(N)
isa(Ns,'sym') % Yes, Ns is a sym.

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